What is Kalkwasser ?

[Faisal1976us]

Hi ,,

i wont to now Kalkwasser ? and what its do ?

[craab]

It is calcium hydroxide and is used to maintain ca in your water, usually by slowly dripping it.

[wrott]

If you use too much, your pH will increase rapidly--be careful--I don't use it anymore.
I would use sodium bicarb and calcium chloride.

[Sk8r]

I use a kalkwasser [lime water] reactor. I put powdered lime into a cylinder. My top off water flows through, a laboratory stirrer keeps the lime water slightly stirred, and ro/di water absorbs just enough lime to bring the right amount to the tank. As tank water evaporates, the float switch causes the top off water to flow through the kalk reactor, which is only a mixing area. The water flows out of it into my tank, and it maintains alkalinity and calcium continually. You must establish the right level of alkalinity and calcium by hand-adding buffer and calcium before using the kalk reactor, but once it is set, you are ok to continue with the kalk reactor for as much as a month without having to dose any more. You test to be sure, but my tank [56g] is doing fine with only that, for the last 2 months.

[Musho3210]

it has kept my ph at a steady 8.3, my kH at 9, and my calcium is slowly rising from 360-400, maybe it will rise more, maybe not, i have been pleased with dripping it with a DIY dripper overnight.

[HDAlien]

As a related question (not a highjack) does Kalk. add alkalinity and calcium in proportion or mostly just CA+?

[LOTUS50GOD]

I use an aquacontroller to only top off with Kalk if my PH is below 8.3... if PH is above then dose with RO/DI

[Sk8r]

It is proportional. You set them by dosing initially, just keep your magnesium up [unlike other additives, kalk doesn't contain it] and you'll stay pretty even.